<template>
  <div :class="{ hidden: hidden }" class="pagination-container">
    <el-pagination
      :background="background"
      :current-page.sync="currentPage"
      :page-size.sync="pageSize"
      :layout="layout"
      :page-sizes="pageSizes"
      :pager-count="pagerCount"
      :total="total"
      v-bind="$attrs"
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
    />
  </div>
</template>

<script>
import { scrollTo } from "@/utils/scroll-to";

export default {
  name: "Pagination",
  props: {
    total: {
      required: true,
      type: Number,
    },
    page: {
      type: Number,
      default: 1,
    },
    limit: {
      type: Number,
      default: 20,
    },
    pageSizes: {
      type: Array,
      default() {
        return [10, 20, 30];
      },
    },
    // 移动端页码按钮的数量端默认值5
    pagerCount: {
      type: Number,
      default: document.body.clientWidth < 992 ? 5 : 7,
    },
    layout: {
      type: String,
      default: "total, sizes, prev, pager, next, jumper",
    },
    background: {
      type: Boolean,
      default: true,
    },
    autoScroll: {
      type: Boolean,
      default: true,
    },
    hidden: {
      type: Boolean,
      default: false,
    },
  },
  data() {
    return {};
  },
  computed: {
    currentPage: {
      get() {
        return this.page;
      },
      set(val) {
        this.$emit("update:page", val);
      },
    },
    pageSize: {
      get() {
        return this.limit;
      },
      set(val) {
        this.$emit("update:limit", val);
      },
    },
  },
  methods: {
    handleSizeChange(val) {
      if (this.currentPage * val > this.total) {
        this.currentPage = 1;
      }
      this.$emit("pagination", { page: this.currentPage, limit: val });
      if (this.autoScroll) {
        scrollTo(0, 800);
      }
    },
    handleCurrentChange(val) {
      this.$emit("pagination", { page: val, limit: this.pageSize });
      if (this.autoScroll) {
        scrollTo(0, 800);
      }
    },
  },
};
</script>

<style scoped lang="scss">
.pagination-container {
  background: #fff;
  padding: 32px 16px;
  margin-top: 10px;
}
.pagination-container.hidden {
  display: none;
}
::v-deep {
  .el-pagination {
    display: flex;
    align-items: center;
    .el-pagination__total {
      color: #fff;
    }
    .el-pagination__jump {
      color: #fff;
    }
    .el-pager {
      color: #fff;
      background-color: transparent !important;
      li {
        border: 1px solid rgba(219, 255, 251, 0.2);
        background: rgba(219, 255, 251, 0.2);
        border-radius: 2px;
        min-width: 32px;
        height: 32px;
        line-height: 32px;
        margin: 0 4px;
        color: #fff;
      }
      li.btn-quicknext,
      li.btn-quickprev {
        color: #fff;
      }
      li:hover {
        color: #fff;
        background-color: rgba(0, 209, 255, 0.2);
      }
      li.active {
        color: #fff;
        background-color: rgba(0, 209, 255, 0.2);
        border: 1px solid rgba(0, 209, 255, 0.7);
      }
    }
    .btn-next,
    .btn-prev {
      background: rgba(219, 255, 251, 0.2) !important;
      border-radius: 2px !important;
      color: #fff !important;
      border: 1px solid rgba(219, 255, 251, 0.2);
      min-width: 32px;
      height: 32px;
      padding: 0 !important;
      margin: 0 4px !important;
    }
    button:disabled {
      color: #c0c4cc !important;
    }
  }
  //当前页背景色
  .el-pagination.is-background .el-pager li:not(.disabled).active {
    border: 1px solid rgba(0, 209, 255, 0.7);
    background-color: rgba(4, 255, 255, 0.2) !important;
  }
}
</style>
